H04J 4/005
Transmultiplexing
Official title: {Transmultiplexing}
H04J4/005 (Transmultiplexing) appears on 75 US grants and 36 published applications in this corpus.
Search patents in H04J- Granted patents
- 75
- Published applications
- 36
- Assignees
- 42
- Inventors
- 123
- Latest grant
- 13 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 2 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 4 |
| 2016 | 4 | 4 |
| 2017 | 4 | 1 |
| 2018 | 2 | 3 |
| 2019 | 4 | 2 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and system of a time-frequency division multiplexed signal receiver13 Aug 2024US 12,063,107 B1Cable Television Laboratories, Inc.
- Integrated circuit for Discrete Fourier Transforming a time signal to a frequency signal12 Mar 2024US 11,929,858 B2Sun Patent Trust
- Communication apparatus and method for discrete fourier transforming a time signal to a frequency signal7 Feb 2023US 11,575,552 B2Sun Patent Trust
- Demultiplexing circuit, multiplexing circuit, and channelizer relay unit27 Sep 2022US 11,456,812 B2Mitsubishi Electric Corporation
- Communication apparatus and method for Discrete Fourier Transforming a time signal to a frequency signal18 May 2021US 11,013,004 B2Sun Patent Trust
- Method and system of a time-frequency division multiplexed receiver5 Dec 2024US 2024/0405907 A1Cable Television Laboratories, Inc.
- Integrated circuit for discrete fourier transforming a time signal to a frequency signal30 May 2024US 2024/0179037 A1Sun Patent Trust
- Communication apparatus and method for discrete fourier transforming a time signal to a frequency signal18 May 2023US 2023/0155870 A1Sun Patent Trust
- Demultiplexing circuit, multiplexing circuit, and channelizer relay unit30 Dec 2021US 2021/0409141 A1Mitsubishi Electric Corporation
- Communication apparatus and method for discrete fourier transforming a time signal to a frequency signal29 Jul 2021US 2021/0235450 A1Sun Patent Trust
Most cited
By later US patents
- Modulator for a broadband communications system115US 5,825,829 AScientific-Atlanta, Inc. · 1998
- Multi-channel digital transmitter and receiver111US 5,323,391 AMotorola, Inc. · 1994
- Digital filter-type frequency demultiplexing device96US 5,299,192 AFrance Telecom · 1994
- Digital filter bank85US 4,393,456 ABell Telephone Laboratories, Incorporated · 1983
- Transmitter and receiver for an othogonally multiplexed QAM signal of a sampling rate N times that of PAM signals, comprising an N/2-point offset fourier transform processor68US 4,300,229 ANippon Electric Co., Ltd. · 1981